Complete Set; Fossils; Igneous Rocks; Metamorphic Rocks; Minerals, Sedimentary Fossils Collection (S96070): Hold a 70-million-year-old fossil in your hand; set includes nine fascinating fossils Igneous Rock Collection (S96071): Igneous rocks are produced by hot volcanic magma action; set includes 12 exotic rock specimens Metamorphic Rock Collection (S96072): Metamorphic rocks are transformed by intense heat and pressure; set includes 12 specimens Mineral Collection (S96073): Minerals combine with each other to make rocks; set includes 12 specimens Sedimentary Rock Collection (S96074): Centuries in the making, sedimentary rocks are formed by layers of deposited matter; set includes 12 specimens